export function filterEmpty(data:{[key:string] : any}) {
    for(let k in data) {
        if(data[k] === '' || data[k] === null) {
            delete data[k]
        }
    }
}

export function transformNumberString(data:{[key:string] : any}, exclude:string[]=[]) {
  for(let k in data) {
      if(exclude.includes(k)) continue
      if(typeof data[k] === 'string' && data[k] !== '') {
        const v = Number(data[k])
        if(!isNaN(v)) {
          data[k] = v
        }
      }
  }
}


export function parseTime(time:any, cFormat:string='{y}-{m}-{d} {h}:{i}:{s}') {
	if(time == 0 || time == null){
		return ''
	}
	
  if (arguments.length === 0) {
    return null
  }
  const format = cFormat
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if (('' + time).length === 10) time = parseInt(time) * 1000
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key]
    if (key === 'a') return ['一', '二', '三', '四', '五', '六', '日'][value - 1]
    if (result.length > 0 && value < 10) {
      value = '0' + value
    }
    return value || 0
  })
	
  return time_str
}

export function formatTime(time, option) {
  time = +time * 1000
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d.getTime()) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) { // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
  }
}


export function recursion(rows:any[], idName='id', childrenName='children', parentIdName='parentId') {
  const arr:any[] =[]
  function fn(arr:any[], parentId=0) {
    rows.forEach(row => {
      if(row[parentIdName] == parentId) {
        row[childrenName] = []
        arr.push(row)
        fn(row[childrenName], row[idName])
      }
    })
  }

  fn(arr, 0)

  return arr
}